integration help

[chap19150]

i have an integration problem. There is a pre existing standalone program that I need to put a gui
on top of. Its only one function that I need to use. The gui displays images that the program sends it.

#include <Magick++.h>
using namespace Magick;
 
void loadImage() {
    Image image;
 
    image.read("image.gif");
    image.write("output.gif");
}
 
int main() {
    loadImage();
 
    return 0;
}

#include <Magick++.h>
using namespace Magick;

void loadImage() {
    Image image;

    image.read("image.gif");
    image.write("output.gif");
}

int main() {
    loadImage();
    
    return 0;
}

To copy to clipboard, switch view to plain text mode 

this program already has its own makefile which is attached. How do I integrate my
gui with this program